1991 300CE Air Pump Repace
 

Hi, can someone tell me how hard it is to replace the AIR pump on a 1991 300CE 6 Cyl.? Any instructions? Thanks,,,,

replacing air pump
 

only 2 bolts, one on the top and bottom, a long one is on the top and short one at the bottom.
Disconnect the big rubber hose and the vacuum line going to the check valve.
That's it.